Running-gear for vehicles



H. W. PRAGKMANN. RUNNING GEAR FOR VEHICLES.

(No Model.)

Patented Nov. 12,1889.

n. PETERS mnnmm hur. wmingm a c UNITED STATES PATENT Trice.

HENRY VILLIAM FRACKMANN, OF PHILADELPHIA, PENNSYLVANIA.

RUNNING-GEAR FOR VEHICLES.

SPECIFICATION forming part of Letters Patent No. 414,693, dated November 12, 1889.

Application tiled Novemher 15, 1887. Serial No. 255,279. (No model.)

To all whom it may concern:

Be it known that I, HENRY W'ILLIAM FRACK- MANN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented an Improved Metallic Anti-Friction Running-Gear or Truck for W'agons with Fifth-Wheel Combined, of which the following is a specification.

My invention relates to improvements in wagon running-gears or trucks in which combination of materials are avoided and the friction of the movable parts is reduced to a minimum. Generally iron and wood are used, but as the expansion and contract-ion of the two materials are so different it is impossible to combine them satisfactorily, and therefore unsafe. Besides this, a metallic running-gear or truck can be made in less time than a composite gear, hence cheaper. I obtain this by using only one kind of materialbrass, iron, steel, or any other suitable metal. The sectional shape may be bar, angle, channel, or tubular form. The construction of the same is illustrated in the accompanying drawings and the specification.

Figure 1 is a plan View of the running-gear or truck with fifth-wheel combined for wagons where poles or shafts 'are required. Fig. 2 is a side view, and Fig. 3 a back view, of Fig. 1. Fig. i is a plan View of running-gear or truck with fifth-wheel combined for wagons with shafts only. Fig. 5 is a cage containing friction-rollers to move between the upper and lower part of the fifth-wheel. Fig. 6 is a vertical section through Fig. 5.

The parts A, B, and O are bent to suitable form required, whereby the middle portion of A forms a part of the fifth-wheel. These parts are fastened together with plates a and b. The pieces 0, also parts of the tiftlrwheel, and the front bar 0 are fastened to B, which latter pieces likewise carrythe receptacle for the king-bolt. Plates (Z, Figs. 1 and 2, are secured to B, and form also with the same the pocket for the pole. The back piece D is fastened to A and B and receives the back spring, to which the side springs are connected. It is readily seen that with a few pieces a strong yet light running-gear or truck can be constructed with fifth-wheel combined,

diiference in temperature having no effect. Fig. 4: is a similar metallic running-gear or truck with fifth-wheel combined, but only for lighter Wagons provided with shafts. It will be seen that the middle pieces 13 are closed together with the plates (1; then they Widen out, so as to receive the king-bolt receptacle and on the back end the cross-piece D to re- OBlXG the back spring. Tread c fastens parts A together. The middle parts A form likewise a part of the fifth-wheel. Piece C, after being secured to B, completes the fifth-wheel.

Fig. 5 is the cage for friction-rollers, to be applied between the upper and lower part of fifth-Wheel. It consists of an inner ring I and outer ring or. These two rings are held concentric in position by braces net, and both rings then fastened with arms 0 0 to a plate 19, through which the king-bolt (1 goes, and thus the cage with friction rollers works around the king-bolt, and around which also the fifth-wheel moves. As the diameter of the cage is made to suit the fifth-wheel, the rollers will reduce the friction which would result if the two parts of the fifth-wheel were rubbing against each other, and consequently a light and easy movement is attained without the aid of grease.

I am aware that prior to my invention friction-rollers have been used, and do not claim the friction-rollers; but

WVha-t I claim as my invention, and desire to secure by Letters Patent, with friction -rollers combined, is

1. The combination of middle pieces 13, connected to rear piece D at one end and to the front piece at the other end, with the fifthwheel having diverging curved ends, the side and back springs, and the axle, all arranged as shown and specified. v

2. In running-gear, the frame, formed of channel-iron, having the middle pieces, and the fifth-wheel provided with curved outwarddivergiug ends, and the friction-rollers, in combination with the part D, fron tcross-piece, and plates (Z (Z, all as set forth.

HENRY WILLIAM FRACKTIIANN.

W'itnesses:

DAVID Evens, PAUL OSSKE. 

